<PRE><B>Question 976938</B>
Consider that the rope to the tent
is the hypotenuse of a right angled triangle.
The distance of 1 metre on ground is the 
adjacent side of the triangle.
Using trigonometric ratio:-
Cosine = Adjacent/Hypotenuse
Cosine 57 degrees = 1 metre/ Hypotenuse
Therefore Hypotenuse (Length of rope)
= 1 metre/ Cosine 57 degrees
= 1.84 metres (2 decimal places)
Hope this helps :-)</PRE>